수식 4: "y" equals negative 2 "x" squared minus 2 "x" minus 8 left brace, "x" greater than or equal to 0 , right bracey=−2x2−2x−8x≥0
4
수식 5: "y" equals negative 2 "x" squared minus 2 "x" minus 8 left brace, "x" less than 0 , right bracey=−2x2−2x−8x<0
5
수식 6: left parenthesis, "t" squared minus 4 , negative 2 "t" to the 4th power minus 2 "t" cubed minus 8 "t" squared , right parenthesist2−4,−2t4−2t3−8t2
정의역 t 최솟값: negative 50−50
less than or equal to "t" less than or equal to≤t≤
정의역 t 최댓값: 5050
6
수식 7: "y" equals "x" squared plus "x" Superscript, 1.5 , Baseline plus 4 "x"y=x2+x1.5+4x
7
수식 8: "y" equals "x" squared minus "x" Superscript, 1.5 , Baseline plus 4 "x"y=x2−x1.5+4x
